/*
 * Copyright 2014 Hieu Rocker
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.widget.emoji;

import android.content.Context;
import android.content.res.TypedArray;
import android.text.ClipboardManager;
import android.text.SpannableString;
import android.text.SpannableStringBuilder;
import android.util.AttributeSet;
import android.widget.EditText;

import com.android.likeweixin.R;
import com.android.likeweixin.util.StringUtily;

/**
 * @author Hieu Rocker (rockerhieu@gmail.com).
 */
public class EmojiconEditText extends EditText
{
    private int mEmojiconSize;
    
    private OnEditTextPasteListener listener;
    
    public EmojiconEditText(Context context)
    {
        super(context);
        init(null);
    }
    
    public EmojiconEditText(Context context, AttributeSet attrs)
    {
        super(context, attrs);
        init(attrs);
    }
    
    public EmojiconEditText(Context context, AttributeSet attrs, int defStyle)
    {
        super(context, attrs, defStyle);
        init(attrs);
    }
    
    private void init(AttributeSet attrs)
    {
        if (attrs == null)
            mEmojiconSize = (int)getTextSize();
        else
        {
            TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.Emojicon);
            mEmojiconSize = (int)a.getDimension(R.styleable.Emojicon_emojiconSize, getTextSize());
            a.recycle();
        }
        setText(getText());
    }
    
    @Override
    protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter)
    {
        EmojiconHandler.addEmojis(getContext(), getText(), mEmojiconSize);
    }
    
    /**
     * Set the size of emojicon in pixels.
     */
    public void setEmojiconSize(int pixels)
    {
        mEmojiconSize = pixels;
    }
    
    @Override
    public void setText(CharSequence text, BufferType type)
    {
        SpannableString t = StringUtily.getExpressionString(getContext(), text.toString());
        SpannableStringBuilder builder = new SpannableStringBuilder(t);
        EmojiconHandler.addEmojis(getContext(), builder, mEmojiconSize);
        super.setText(builder, type);
    }
    
    @Override
    public boolean onTextContextMenuItem(int id)
    {
        // TODO Auto-generated method stub
        if (id == android.R.id.paste)
        {
            if (listener != null)
            {
                ClipboardManager clip = (ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE);
                listener.onPaste(clip.getText().toString());
                return true;
            }
        }
        return super.onTextContextMenuItem(id);
    }
    
    public void setOnPasteListener(OnEditTextPasteListener onEditTextPasteListener)
    {
        this.listener = onEditTextPasteListener;
    }
}
